Harper—Species of Pholiota and Stropharia. 1019 
Stropharia obturata, Fr, PI. LXVI ABC. 
I am indebted to Dr. W. S. Moffatt of Wheaton, Ills., for the 
photograph of this species. The plants grew on the ground 
among dead leaves in woods at Glen Ellyn, Ills., in September. 
Dr. Moffatt referred the plants with some doubt to Stropharia 
obturata but did not preserve the specimens. The plants agree 
well with the description of that species except that they are 
larger, often larger that the photograph and the stems do not 
taper downward. The spores are brown, 5x6/*. 
Stropharia obturata is described as follows: Pileus 1 —2% 
inches broad, fleshy, quite thick, convex to plane, obtuse, nearly 
dry, even on the margin, becoming rimosely squamulose, light 
yellow. Flesh compact, white. Lamellae adnate without a 
tooth, whitish becoming purple brown, never rusty. Stem. 
1—1% inches long, 3 lines and more thick, firm, stuffed, slight¬ 
ly attenuated downward, not scaly, white, Annulus thick, white, 
Spokes purple brown 4x7/* or 6x9^. 
We desire to include the photograph with our illustrations 
because it shows another form of a group of plants which need 
further observation. This plant, the one figured in Trans. Wis. 
Acad. Sciences Arts and Letters XVII Part I PI. XXV, Stro¬ 
pharia drymonia, Stropharia melasperma, reported from 
Xew York by Peck, Pholiota howeana, Pk. and several others 
are closely related and the differences between them not well 
known. Sylloge furthermore expresses doubt whether Stro¬ 
pharia obturata is distinct from Stropharia coronilla. 
Note —Stropharia melaspe'rma, Bull., reported from New York by- 
Peck, N. Y. State Mus. Bull. 105, p. 28, is a small plant with the pileus 
1-2 inches broad and stem about 1 inch long growing in grassy places. 
The pileus is smooth, white or yellowish, viscid in wet weather, never 
rimose scaly, stem white or yellowish with a medial ring, Lamellae 
ventricose, rounded or emarginate. It appears to differ from Stro¬ 
pharia obturata in the pileus not being rimose scaly and the rounded 
gills. 
Stropharia drymonia, Morg., Jour. Myc. April, 1908, p. 73, was based 
on plants growing on and near rotten wood at Preston, Ohio. They 
were large plants with the pileus 2%-4 inches broad and the stem 3-6 
inches long, pileus smooth and viscid, pale ochraceous, flesh thick 
and white and a smooth white stem. The gills were close, narrow, 
white becoming brown with small brown spores 3—4x5—6^. 
